From a832fd04ef085ef7e85000843a8e8fa59ce36dfb Mon Sep 17 00:00:00 2001
From: Christian Hesse <mail@eworm.de>
Date: Tue, 7 Mar 2023 10:57:42 +0100
Subject: rename scripts and add file extension ".rsc"

No functional change for the user... The migration is done
automatically.
---
 ipv6-update.rsc | 76 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 ipv6-update.rsc

(limited to 'ipv6-update.rsc')

diff --git a/ipv6-update.rsc b/ipv6-update.rsc
new file mode 100644
index 0000000..2838feb
--- /dev/null
+++ b/ipv6-update.rsc
@@ -0,0 +1,76 @@
+#!rsc by RouterOS
+# RouterOS script: ipv6-update
+# Copyright (c) 2013-2023 Christian Hesse <mail@eworm.de>
+# https://git.eworm.de/cgit/routeros-scripts/about/COPYING.md
+#
+# update firewall and dns settings on IPv6 prefix change
+# https://git.eworm.de/cgit/routeros-scripts/about/doc/ipv6-update.md
+
+:local 0 "ipv6-update";
+:global GlobalFunctionsReady;
+:while ($GlobalFunctionsReady != true) do={ :delay 500ms; }
+
+:local PdPrefix $"pd-prefix";
+
+:global LogPrintExit2;
+:global ParseKeyValueStore;
+
+:if ([ :typeof $PdPrefix ] = "nothing") do={
+  $LogPrintExit2 error $0 ("This script is supposed to run from ipv6 dhcp-client.") true;
+}
+
+:local Pool [ /ipv6/pool/get [ find where prefix=$PdPrefix ] name ];
+:if ([ :len [ /ipv6/firewall/address-list/find where comment=("ipv6-pool-" . $Pool) ] ] = 0) do={
+  /ipv6/firewall/address-list/add list=("ipv6-pool-" . $Pool) address=:: comment=("ipv6-pool-" . $Pool);
+  $LogPrintExit2 warning $0 ("Added ipv6 address list entry for ipv6-pool-" . $Pool) false;
+}
+:local AddrList [ /ipv6/firewall/address-list/find where comment=("ipv6-pool-" . $Pool) ];
+:local OldPrefix [ /ipv6/firewall/address-list/get ($AddrList->0) address ];
+
+:if ($OldPrefix != $PdPrefix) do={
+  $LogPrintExit2 info $0 ("Updating IPv6 address list with new IPv6 prefix " . $PdPrefix) false;
+  /ipv6/firewall/address-list/set address=$PdPrefix $AddrList;
+
+  # give the interfaces a moment to receive their addresses
+  :delay 2s;
+
+  :foreach ListEntry in=[ /ipv6/firewall/address-list/find where comment~("^ipv6-pool-" . $Pool . ",") ] do={
+    :local ListEntryVal [ /ipv6/firewall/address-list/get $ListEntry ];
+    :local Comment [ $ParseKeyValueStore ($ListEntryVal->"comment") ];
+
+    :local Prefix [ /ipv6/address/find where from-pool=$Pool interface=($Comment->"interface") global ];
+    :if ([ :len $Prefix ] = 1) do={
+      :set Prefix [ /ipv6/address/get $Prefix address ];
+
+      :if ([ :typeof [ :find ($ListEntryVal->"address") "/128" ] ] = "num" ) do={
+        :set Prefix ([ :toip6 [ :pick $Prefix 0 [ :find $Prefix "/64" ] ] ] & ffff:ffff:ffff:ffff::);
+        :local Address ($ListEntryVal->"address");
+        :local Address ($Prefix | ([ :toip6 [ :pick $Address 0 [ :find $Address "/128" ] ] ] & ::ffff:ffff:ffff:ffff));
+
+        $LogPrintExit2 info $0 ("Updating IPv6 address list with new IPv6 host address " . $Address . \
+          " from interface " . ($Comment->"interface")) false;
+        /ipv6/firewall/address-list/set address=$Address $ListEntry;
+      } else={
+        $LogPrintExit2 info $0 ("Updating IPv6 address list with new IPv6 prefix " . $Prefix . \
+          " from interface " . ($Comment->"interface")) false;
+        /ipv6/firewall/address-list/set address=$Prefix $ListEntry;
+      }
+    }
+  }
+
+  :foreach Record in=[ /ip/dns/static/find where comment~("^ipv6-pool-" . $Pool . ",") ] do={
+    :local RecordVal [ /ip/dns/static/get $Record ];
+    :local Comment [ $ParseKeyValueStore ($RecordVal->"comment") ];
+
+    :local Prefix [ /ipv6/address/find where from-pool=$Pool interface=($Comment->"interface") global ];
+    :if ([ :len $Prefix ] = 1) do={
+      :set Prefix [ /ipv6/address/get $Prefix address ];
+      :set Prefix ([ :toip6 [ :pick $Prefix 0 [ :find $Prefix "/64" ] ] ] & ffff:ffff:ffff:ffff::);
+      :local Address ($Prefix | ([ :toip6 ($RecordVal->"address") ] & ::ffff:ffff:ffff:ffff));
+
+      $LogPrintExit2 info $0 ("Updating DNS record for " . ($RecordVal->"name") . \
+        ($RecordVal->"regexp") . " to " . $Address) false;
+      /ip/dns/static/set address=$Address $Record;
+    }
+  }
+}
-- 
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